embedaddon/arping/src/findif_getifaddrs.c - diff

Return to findif_getifaddrs.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / arping / src

version 1.1.1.2, 2016/10/18 13:16:10	version 1.1.1.3, 2021/03/16 23:40:57
Line 39	Line 39

#include "arping.h"	#include "arping.h"

	#define UNUSED(x) (void)(x)

const char *	const char *
arping_lookupdev(uint32_t srcip,	arping_lookupdev(uint32_t srcip,
uint32_t dstip,	uint32_t dstip,
Line 48 arping_lookupdev(uint32_t srcip,	Line 50 arping_lookupdev(uint32_t srcip,
struct ifaddrs *cur;	struct ifaddrs *cur;
const char *ret = NULL;	const char *ret = NULL;
int match_count = 0; /* Matching interfaces */	int match_count = 0; /* Matching interfaces */
	UNUSED(srcip);

/* best match */	/* best match */
in_addr_t best_mask = 0;	in_addr_t best_mask = 0;
in_addr_t best_addr;

/* Results */	/* Results */
static char ifname[IFNAMSIZ];	static char ifname[IFNAMSIZ];
Line 92 arping_lookupdev(uint32_t srcip,	Line 94 arping_lookupdev(uint32_t srcip,
if (ntohl(mask) > ntohl(best_mask)) {	if (ntohl(mask) > ntohl(best_mask)) {
memset(ifname, 0, sizeof(ifname));	memset(ifname, 0, sizeof(ifname));
strncpy(ifname, cur->ifa_name, sizeof(ifname)-1);	strncpy(ifname, cur->ifa_name, sizeof(ifname)-1);
best_addr = addr;
best_mask = mask;	best_mask = mask;
}	}
}	}